You can also exchange it for a new box if you're having technical difficulties. A technician usually installs your cable and cable box, but you can remove a Comcast cable box and return or exchange it by yourself.
Eat vitamin A each day to keep your digestive system healthy. The surface of your digestive tract is made up of mucosal tissues. These tissues secrete compounds that help with digestion -- the mucosal lining in your stomach, for example, secretes stomach acid -- and also absorb the nutrients from your food.
Vitamin C: This vitamin helps with the immune system and the absorption of iron. Good food sources include oranges, kiwi, strawberries, broccoli, tomatoes and peppers. Vitamin D: This promotes healthy bones and teeth by helping the body absorb calcium.